View of the brick smokestack and timber scaffolding of a Continental Oil Shale Company retort in Rio Blanco County, Colorado. Shows metal parts for the retort, scraps of wood, and snow on the ground nearby.

Date

[between 1900 and 1920?]

Notes

Accession number: 96.69.133; History Colorado.; Handwritten on envelope: "Industry-Oil Shale-Rio Blanco."; Title and "photo taken from shale ledge above the retort" penciled on verso.; R7200052635